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GeoDict User Guide 2025

Flow Visualization

Under the Flow Visualization tab, the results of the flow simulation can be loaded for graphical visualization in 2D-Cross section view or 3D-Rendering.

When the flow has been computed for all three directions, it can be uploaded to memory by checking the corresponding *.vap file and clicking Load. The directions that were not selected are not computed, and, thus, are unavailable. To load the results, simply click Load.

Choose the flow field components: VelocityX, VelocityY, VelocityZ, Velocity and/or Pressure.

By checking Decompress fields, the flow field is decompressed to a regular grid instead of remaining compressed. The flow field was stored with compression (computed with the LIR solver) and keeping it compressed requires 80-90% less memory for visualizations compared to decompressed flow fields. However, not all visualization features are supported for compressed flow fields.

The original structure that the solver used internally is also loaded if Load structures with closed pores is checked. This structure also shows pores that have been closed due to prior geometry analysis.

Clicking Load prepares the results of the flow simulation for visualization, but also File Load Volume Field can be selected in the Menu bar.

The initial display is carried out using the default values, but the visualization of the flow field can be adjusted through the parameters under the Volume Field tab, in the View Controls, above the Visualization area.

There are many possibilities to visualize the results. For example, visualize Streamlines or Schlieren.

Clip structures or visualize solid materials or volume field with transparencies, here for example for a flow experiment, where the walls cover the flow results and thus are set to transparent:

For all FlowDict results, several result fields can be loaded. By default, Velocity is shown. Switch between the different fields in the Volume Field tab. More information about the visualization parameters is available in the Visualization User Guide.

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